I'm sure the fine forum members can help me a little here. I bought a 12-40 (separated from the E-M1 kit) and I'm thinking of thinning my lens selection. I currently have the following lenses for my E-M5: 1. 9-18 - I like wide, so it will stay until an 8,9 or 10mm prime comes along. 2. 17 1.8 - my 'default' lens, since I like the 35mm-e Field of view. But I also have an X100, same FOV, which is almost as fast (f2). 3. 45 1.8 - mostly for portraits 4. 40-150 - cheap, and good enough for my rare zoo shots and such 5. 75 - definitely stays I shoot landscapes, cities, churches and sometimes fast-moving grandchildren. To help finance the new lens, what would you do? My thoughts: * The 9-18 stays, as 12mm isn't wide enough (I tested the 12mm prime). * The 17 could go, as it seems to be covered well enough by the 12-40 (I will test this when the 12-40 arrives). If 2.8 isn't enough (although I mostly shoot non-moving subjects, so a bit longer exposure isn't a huge deal), I have the X100. * The 45 could go, for portraits I have the 75. If I can't get back far enough indoors for the 75, I could just use the 12-40, maybe using flash to stop motion. Again, I'll test it against the 12-40 when it arrives. * The 40-150 could go, but it wouldn't fetch much money. What are your thoughts?